IMA mineral species

Vuonnemite

🪶 Soft, Scratches Easily

Na₆Na₂Nb₂Na₃Ti(Si₂O₇)₂(PO₄)₂O₂(OF)

Seidozerite supergroup, sorosilicate mineral.

Vuonnemite specimen
Vuonnemite.jpg · Wikimedia Commons (see file page for author & license)

Properties

⛏ Mohs hardness2.5
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💅🪙🍶🔪💎

Scratches with a fingernail.

Chemical formulaNa₆Na₂Nb₂Na₃Ti(Si₂O₇)₂(PO₄)₂O₂(OF)
ElementsNa, Nb, Ti, Si, O, P, F
Crystal systemTriclinic
Mohs hardness2.5
Density—
Streak—
Color—
IMA symbolVn
Nickel–Strunz class9.BE.35

“—” means no reliable value in Wikidata yet. Check Mindat for full data.

Care & Handling

  • 🪶 Soft, Scratches Easily Mohs 2.5: softer than a steel knife, so it scratches easily. Store it apart from harder stones.

🌍 Where it's found

Type locality (where it was first described): Vuonnemiok river valley